Two SJ ships.

Since coming onto this forum and seeing the promo clips and viral clips etc. listening to interviews and such i'm increasingly of the opinion that the two SJ ships are different. The ship on LV426 comes from a much earlier time and the xenomorph cargo is an accident from a containment spill of goo that transformed another alien lifeform outside of sj race. inturn spawning from a infected sj the xeno's. the sj's use to goo to assimilate other species to their own. but the accident creating xeno's made a creature that can augment features from other creatures eg dog alien (though its not canon "predator alien". get the idea.) a sj rescue team goes to lv426. they are too late.they set up the warning beacon. like the nostromo crew take the xenomorph back home by accident. wipes most of the sj race out before they contain the xenos. then go into hibernation till the prometheus expedition turnsup. That goo is the real star here. and david states the obvious in full view. And well the SJ making way for earth is probable the only way they can keep their race from dying out. what do you rekon guys? or is it we are so hyped about this movie that we are generating too much imagination.......cant sleep